Aqualung

Aqualung Axiom i3+ Men's BCD

Jacket-style BCD built on the standard Axiom platform, adding Aqualung's lever-operated i3+ inflate/deflate system in place of a conventional power inflator.

Aqualung Axiom i3+ Men's BCD
3.9Comparison Score
$899
Buy on Amazon
Released2024
Stylejacket
Weight-integratedYes
Lift capacity36 lbs
Backplatenone
D-rings6
Trim pocketsYes
Material420 Denier Nylon
Travel-friendlyNo
Dry weight—
Fitmens
SizesXS–2XL

"Lift capacity" is the manufacturer-rated buoyancy the wing/bladder can provide at the surface. Match it to your exposure suit, tank, and weighting, not the biggest number available.

Pros
  • i3+ side lever replaces the pull-hose inflator, letting divers add small or large inflation bursts and dump all valves with one motion
  • Wrapture harness and bladder retraction system carry over from the standard Axiom for a snug, low-drag fit
  • GripLock tank band and SureLock II weight system speed up cylinder attachment and weight removal
Cons
  • Costs $70 more than the standard Axiom for the i3+ mechanism alone, with no other hardware changes
  • i3+ is a mechanical lever system exclusive to Aqualung, so a damaged unit can't be swapped for a generic aftermarket inflator in the field
  • Jacket-style bladder is bulkier than Aqualung's back-inflation or modular lines, and not marketed as travel-friendly
Diver community sentiment
Mostly positive

Divers on Scubaboard and independent review sites consistently praise the i3 integrated inflator/deflator for making buoyancy control simpler and more intuitive than a standard power inflator, since activating it opens multiple dump valves simultaneously so orientation matters less when venting. Comfort, fit, and build quality also draw regular praise, with owners reporting years of trouble-free use. The recurring complaints are mechanical: some divers report the inflator lever occasionally gets bumped or snagged on crowded boats, and a minority report dump valves needing costly manufacturer repair.

Scubaboard: i3 inflator mechanism discussionScubaboard: Axiom i3 vs standard AxiomDiveOtter: Axiom i3 review

Summarized from public forum discussion (Scubaboard, Reddit, and similar), not a survey we ran ourselves. See the linked threads for the original conversations.

The Aqualung Axiom i3+ Men’s is the standard Axiom jacket-style BCD fitted with Aqualung’s i3+ inflation system, which replaces the usual power-inflator hose with a side lever: pulling up adds air in short or long bursts, pushing down opens all exhaust valves to dump. Everything else carries over from the regular Axiom, including the Wrapture harness, GripLock tank band, SureLock II weight-release pockets, and bladder retraction system. It’s sized XS to 2XL with lift capacity scaling from about 31 lb to 50 lb depending on size.